Declension table of ?yavakya

Masculine	Singular	Dual	Plural
Nominative	yavakyaḥ	yavakyau	yavakyāḥ
Vocative	yavakya	yavakyau	yavakyāḥ
Accusative	yavakyam	yavakyau	yavakyān
Instrumental	yavakyena	yavakyābhyām	yavakyaiḥ yavakyebhiḥ
Dative	yavakyāya	yavakyābhyām	yavakyebhyaḥ
Ablative	yavakyāt	yavakyābhyām	yavakyebhyaḥ
Genitive	yavakyasya	yavakyayoḥ	yavakyānām
Locative	yavakye	yavakyayoḥ	yavakyeṣu

Compound yavakya -

Adverb -yavakyam -yavakyāt